[griffin]

I consider anything longer than 600 yards, longer distances.

That is way beyond what either of these two should be used for.

I shot 6.5PRC in some PRS competitions and at a few hundred FPS faster than the 6.5 Creedmoor, it was much less susceptible to wind, especially over 400 yards.

So, for a competition round I like 6.5PRC, or if you let me shoot magnum power in competition on your steel, then the 300PRC or 338 Lapua.

If we are talking military applications, 556 up to 400 yards max, 7.62x51 mid-range, and 300WM over 1000 yards.

[PROCON]

Good grief people, talk about going off into the weeds.

The title to the thread is:

Which is the better long-distance round: 5.56 or 7.62?

It isn't; "What's the best military caliber for long distances" or "What round do you prefer to shoot at long distances?"

The author used his metrics and came to his conclusion.

Reading comprehension is important!